I've been incubating two kharki Campbell eggs, it's going into the 29th day ,I've noticed a dark mark appearing on the surface of the egg does that mean it's getting close to hatching? This is my first experience hatching my own eggs so not sure what I'm doing! I candled them yesterday to make sure there still alive and I did see a tiny movement ! I know they can be a couple of days over due so just waiting quietly jumping up and down with excitement!!!